public class E5 { 
  public static void main (String args []) {
   int [] a={10,20,30,40},b[] ={{1,2},{4,5,6,7}};
   b[0]=a;
   b[0][1]= b[1][3];
   System.out.println(b[0][3]);
   System.out.println(a[1]);
}
}
